| new host and locality records of coccidia (apicomplexa: eimeriidae) from rodents in the southwestern and western united states. | one hundred forty-seven murid and heteromyid rodents were collected from various sites in the southwestern and western united states (arizona, colorado, new mexico, texas, and utah) and baja california norte, mexico, and their feces were examined for coccidial parasites. of these, 53 (36%) were infected with at least 1 coccidian; 45 of 53 (85%) of the infected rodents harbored only 1 species of coccidian. infected rodents included: 10 of 22 (45%) neotoma albigula, 3 of 11 (27%) neotoma floridana ... | 1991 | 1779282 |
| complete nucleotide sequences of the m and s segments of two hantavirus isolates from california: evidence for reassortment in nature among viruses related to hantavirus pulmonary syndrome. | we report the complete nucleotide sequence of the m and the s genome segments and a portion of the l segments of two hantavirus isolates from peromyscus maniculatus trapped in eastern california. the isolates, convict creek 107 and 74 (cc107 and cc74) are genetically similar to viruses known to cause hantavirus pulmonary syndrome in new mexico. cc107 and cc74 each have an m segment consisting of 3696 nucleotides with a coding potential of 1140 amino acids in the virus complementary-sense rna (cr ... | 1995 | 7856108 |
| short report: prevalence of hantavirus infection in rodents associated with two fatal human infections in california. | rodents living near two fatal human cases of hantavirus pulmonary syndrome in california were surveyed for evidence of hantavirus infection. seventeen (15%) (14 peromyscus maniculatus and one each of p. truei, eutamias minimus, and microtus californicus) of 114 rodents tested had evidence (enzyme-linked immunosorbent assay or polymerase chain reaction) of hantavirus infection. this suggests that peromyscus mice, and p. maniculatus in particular, may be the reservoir for the virus causing this ne ... | 1995 | 7872450 |
| coccidian parasites (apicomplexa) from snakes in the southcentral and southwestern united states: new host and geographic records. | four hundred thirty-five leptotyphlopid, colubrid, elapid, and viperid snakes were collected from various localities in arkansas, new mexico, oklahoma, and texas, and their feces were examined for coccidian parasites. of these, 131 (30%) were passing oocysts or sporocysts of at least 1 coccidian; 88 (67%) of the infected snakes had only 1 species of coccidian when they were examined. aquatic and semiaquatic snakes accounted for 48% of the infections, whereas strictly terrestrial snakes comprised ... | 1995 | 7876980 |
| serologic and genetic identification of peromyscus maniculatus as the primary rodent reservoir for a new hantavirus in the southwestern united states. | an outbreak of hantavirus pulmonary syndrome (hps) in the southwestern united states was etiologically linked to a newly recognized hantavirus. knowledge that hantaviruses are maintained in rodent reservoirs stimulated a field and laboratory investigation of 1696 small mammals of 31 species. the most commonly captured rodent, the deer mouse (peromyscus maniculatus), had the highest antibody prevalence (30%) to four hantavirus antigens. antibody also was detected in 10 other species of rodent and ... | 1994 | 8195603 |
| dynamics of plague in a gunnison's prairie dog colony complex from new mexico. | a plague (yersinia pestis) epizootic spread through gunnison's prairie dogs (cynomys gunnisoni), and possibly other rodent species, in the moreno valley in north-central new mexico between winter 1984-1985 and autumn 1987. we observed the progress of the epizootic and subsequent population recovery at four prairie dog towns within the valley during this period. at two towns (midlake and val verde) the prairie dogs were marked prior to the epizootic. at two additional towns (vega and south entran ... | 1997 | 9391954 |
| genetic reassortment among viruses causing hantavirus pulmonary syndrome. | in order to determine the frequency and characteristics of reassortment among viruses causing hantavirus pulmonary syndrome (hps), mixed infections were initiated in tissue culture by using two closely related strains of sin nombre virus, cc107 (from eastern california) and nmr11 (from new mexico), which share the same species of rodent host in nature, the deer mouse (peromyscus maniculatus). potential reassortant virus plaques were screened by multiplex rt-pcr, using primers specific for indivi ... | 1998 | 9501041 |
| hantavirus pulmonary syndrome--colorado and new mexico, 1998. | hantavirus pulmonary syndrome (hps) is a severe cardiopulmonary illness resulting in death in approximately 45% of cases. the most frequently recognized etiologic agent of hps in north america, sin nombre virus (snv), is transmitted to humans from its primary rodent reservoir, peromyscus maniculatus (deer mouse), by direct contact with infected rodents, rodent droppings, or nests or through inhalation of aerosolized virus particles from mouse urine and feces. sporadic cases occur throughout the ... | 1998 | 9639364 |
| experimental evaluation of rodent exclusion methods to reduce hantavirus transmission to residents in a native american community in new mexico. | we conducted a pilot study to evaluate the efficacy of rodent proofing continuously occupied homes as a method for lowering the risk for hantavirus pulmonary syndrome (hps) among residents of a native american community in northwestern new mexico. rodent proofing of dwellings was paired with culturally appropriate health education. seventy homes were randomly assigned to treatment or control categories. treatment homes were rodent-proofed by sealing openings around foundations, doors, roofs, and ... | 2002 | 12653299 |
| hantavirus pulmonary syndrome--five states, 2006. | hantavirus pulmonary syndrome (hps) is a rodentborne viral disease characterized by severe pulmonary illness and a case-fatality ratio of 30%-40%. sin nombre virus causes the majority of hps cases in the united states, and the deer mouse (peromyscus maniculatus) is its predominant reservoir. this report describes an increase in human cases of hps reported during january-march 2006 from arizona, new mexico, north dakota, texas, and washington state. the findings emphasize the need for renewed att ... | 2006 | 16760891 |
| deer mouse movements in peridomestic and sylvan settings in relation to sin nombre virus antibody prevalence. | prevalence of antibody to sin nombre virus (snv) has been found to be nearly twice as high in deer mice (peromyscus maniculatus) in peridomestic settings as in sylvan settings in two studies in montana and one in new mexico. we investigated whether this difference may be related to a difference in deer mouse movements in the two settings. we used radiotelemetry to determine home range size and length of movement for 22 sylvan (1991-1992) and 40 peridomestic deer mice (1995-1999). we also determi ... | 2006 | 17255448 |
| demographic factors associated with prevalence of antibody to sin nombre virus in deer mice in the western united states. | we used long-term data collected for up to 10 yr (1994-2004) at 23 trapping arrays (i.e., webs and grids) in arizona, colorado, montana, and new mexico to examine demographic factors known or suspected to be associated with risk of infection with sin nombre virus (snv) in its natural host, the deer mouse (peromyscus maniculatus). gender, age (mass), wounds or scars, season, and local relative population densities were statistically associated with the period prevalence of antibody (used as a mar ... | 2007 | 17347388 |
| temporal and geographic evidence for evolution of sin nombre virus using molecular analyses of viral rna from colorado, new mexico and montana. | all viruses in the family bunyaviridae possess a tripartite genome, consisting of a small, a medium, and a large rna segment. bunyaviruses therefore possess considerable evolutionary potential, attributable to both intramolecular changes and to genome segment reassortment. hantaviruses (family bunyaviridae, genus hantavirus) are known to cause human hemorrhagic fever with renal syndrome or hantavirus pulmonary syndrome. the primary reservoir host of sin nombre virus is the deer mouse (peromyscus ... | 2009 | 19602267 |